CVE DatabaseCVE-2019-0344

Updated 2026-06-17한국어 권고문 →

CVE-2019-03449.8/CRITICALCISA KEVCWE-502CWE-502

SAP Commerce Cloud (Hybris) VirtualJDBC Extension Remote Code Execution Vulnerability (CVE-2019-0344) Analysis and Mitigation Guide

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Affected Vendors

sap

Affected Components

commerce_cloud

Published Date

2019-08-14

CVSS v3.1

9.8

CRITICAL

EPSS (30d)

7.5%

FIRST.org

CISA KEV

Exploited

NVD Source ↗

Executive & SecOps Summary

SECOPS ASSESSMENT

Affected Scope

SAP Commerce Cloud (formerly Hybris) versions 6.4, 6.5, 6.6, 6.7, 1808, 1811, and 1905 with the virtualjdbc extension enabled

Impact

Unauthenticated remote attackers can exploit insecure deserialization to execute arbitrary system commands with 'Hybris' user privileges on the target host

Mitigation

Apply the official SAP security patch (SAP Note 2786035), disable the unused virtualjdbc extension, or restrict external access to the endpoint

Affected Products & Version Scope

SAP Commerce Cloud (when virtualjdbc extension is enabled) versions 6.4, 6.5, 6.6, 6.7, 1808, 1811, and 1905

Remediation & Live Workaround Commands

PATCH & WORKAROUND

1. Official Patch & Version Upgrade Commands

The primary remediation is to apply the official security patch from the SAP Support Portal. Refer to SAP Note 2786035 to upgrade your SAP Commerce Cloud instance to a secure patch level.

bash

# Example of rebuilding and redeploying SAP Commerce Cloud (Hybris environment)
cd /opt/hybris/bin/platform
source ./setantenv.sh

# Clean and rebuild the platform with the patched version
ant clean all

# Restart the Hybris server
./hybrisServer.sh restart

2. Temporary Workaround & Hardening Configuration

If patching cannot be applied immediately, disable the virtualjdbc extension in localextensions.xml or block external access to the endpoint using a reverse proxy or Web Application Firewall (WAF).

nginx

# Nginx configuration to block external access to the virtualjdbc endpoint
server {
    listen 80;
    listen 443 ssl;
    server_name commerce.yourdomain.com;

    # Block all external requests to virtualjdbc
    location ~* /virtualjdbc {
        deny all;
        return 403;
    }

    location / {
        proxy_pass http://localhost:9001;
        proxy_set_header Host $host;
    }
}

3. Log Audit & IoC Verification Commands

Run the following commands to inspect your application logs for potential exploitation attempts or unauthorized access to the virtualjdbc endpoint.

bash

# Search access logs for requests targeting the virtualjdbc endpoint
echo '[*] Scanning access logs for virtualjdbc activity...'
grep -i 'virtualjdbc' /opt/hybris/log/tomcat/access_*.log

# Search console logs for Java deserialization stack traces and exceptions
echo '[*] Scanning console logs for deserialization errors...'
egrep -i 'java.io.ObjectInputStream|ClassNotFoundException|Method.invoke' /opt/hybris/log/tomcat/console*.log

Interactive SecOps Remediation Checklist

0/4 (0%)

Recommended Security Control & Mitigation Partner

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As this vulnerability is actively exploited in the wild (CISA KEV), immediately apply SAP Note 2786035 or restrict access to the virtualjdbc endpoint.

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Technical Root Cause & Exploitation Mechanics

1. Vulnerability Overview & Root Cause

This vulnerability (CVE-2019-0344) is a critical Insecure Deserialization (CWE-502) flaw residing in the VirtualJDBC (virtualjdbc) extension of SAP Commerce Cloud (formerly SAP Hybris). The virtualjdbc module allows client applications to execute database queries remotely over HTTP/HTTPS. Because the application deserializes untrusted user-supplied input without proper validation, an attacker can craft and submit a malicious serialized Java object, leading to arbitrary code execution within the context of the JVM.

2. Exploitation Mechanics & Attack Scenario

An attacker scans for publicly accessible virtualjdbc servlet endpoints (typically mapped to /virtualjdbc or similar paths). Using Java deserialization payload generation tools like ysoserial, the attacker constructs a payload leveraging common gadget chains (such as Apache Commons Collections) present in the application's classpath. When this payload is transmitted via an HTTP POST request, the vulnerable server's ObjectInputStream.readObject() method processes the payload, triggering the execution of arbitrary OS commands under the privileges of the 'Hybris' operating system user.

3. Infrastructure & Business Impact

With a CVSS 3.1 score of 9.8 (Critical) and its inclusion in the CISA Known Exploited Vulnerabilities (KEV) catalog, this vulnerability represents an active and severe threat. Successful exploitation grants attackers complete control over the SAP Commerce Cloud application server. This can lead to full database compromise (exfiltrating customer PII, payment details, and order history), deployment of ransomware, and lateral movement within the corporate network.

Official Vendor Advisories & References

NVD Original English Description

Due to unsafe deserialization used in SAP Commerce Cloud (virtualjdbc extension), versions 6.4, 6.5, 6.6, 6.7, 1808, 1811, 1905, it is possible to execute arbitrary code on a target machine with 'Hybris' user rights, resulting in Code Injection.

https://launchpad.support.sap.com/#/notes/2786035

Source: cna@sap.com · Permissions Required, Vendor Advisory

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=523998017

Source: cna@sap.com · Broken Link

https://launchpad.support.sap.com/#/notes/2786035

Source: af854a3a-2127-422b-91ae-364da2661108 · Permissions Required, Vendor Advisory

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=523998017

Source: af854a3a-2127-422b-91ae-364da2661108 · Broken Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-0344

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 · US Government Resource

Frequently Asked SecOps Questions (CVE-2019-0344)

FAQ

Q1. How critical is CVE-2019-0344 and is it actively exploited in the wild?

CVE-2019-0344 is rated CVSS 9.8 (CRITICAL) with a 30-day EPSS exploitation probability of 7.5%. It is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, requiring immediate emergency remediation.

Q2. Which vendors and products are affected by CVE-2019-0344?

Primary impacted vendors include sap across commerce_cloud. Scope summary: SAP Commerce Cloud (when virtualjdbc extension is enabled) versions 6.4, 6.5, 6.6, 6.7, 1808, 1811, and 1905

Q3. What temporary mitigations or workarounds exist for CVE-2019-0344 before patching?

[Mitigation] Apply the official SAP security patch (SAP Note 2786035), disable the unused virtualjdbc extension, or restrict external access to the endpoint Follow the CLI remediation commands and interactive SecOps checklist on this page to restrict exposure prior to your maintenance window.

SECOPS WORKBENCH INTEGRATION